Thanks for all the replys, both direct and thru the reflector.
I have been able to successfully rotate the rotor 360 degrees all weekend at
speed setting 5. Then, as of this morning, I decided to try the fast speed
again, and the darn thing is now working fine even at the fastest setting (9).
So either there was something in the motor that needed to work itself free,
such as a burr or some sort of contamination on the magnet, or, there was some
sort of corruption in the controller that was not clearing via a normal power
cycle, and due to usage, has cleared itself.
I'll need to watch it closely.
Eric
K2CB
----- Original Message -----
From: john@kk9a.com
To: TOWERTALK@contesting.com
Cc: k2wd@comcast.net
Sent: Saturday, July 17, 2010 6:35:54 PM
Subject: re: [TowerTalk] OR2800 rotor issue
I believe some people have had trouble with this controller and found that
it works better using a separate shielded cable for the pulse indicator.
Green Heron makes an excellent controller which may solve your issues.
John KK9A
To: towertalk@contesting.com
Subject: [TowerTalk] OR2800 rotor issue
From: k2wd@comcast.net
Date: Sat, 17 Jul 2010 20:23:11 +0000
Good afternoon,
I installed an OR2800 dc rotor yesterday, and ran into a few issues.
After performing the calibration routine, I tried to rotate the rotor one
full
360 degree rotation. However, the rotor would always stop at 95 degrees, or
thereabouts, even after multiple recalibration attempts. More interestingly,
each time I got to 95 on the controller, the outside array would be anywhere
from 35 to 70 degrees in position.
If I waited 30 seconds and then tried to hit the CW button again, it would
sit
at 95, then display error message E1.
I then took the controller out from the shack to the base of the tower, thus
reducing the control cable length in half and removing the lightning
suppression equipment. Same results. Cable is the wireman cable designed
for
this rotor. (#302 or 306, I forget) 100ft from the rotor to the supression
panel, then another 105ft to the shack.
Frustrated, I reconnected everything as before and put the controller back
in
the shack. After taking a break, I came back to the shack. For some reason,
this time I thought about lowering the speed setting from 9 to 4. Then,
miraculously, I was able to rotate the rotor completely around (360+).
Repeatedly with success!
Therefore, it appears that for some reason, at high speeds the controller
and
rotor are loosing sync. I can understand if the controller gets corrupted
pulse
data, but why does it always stop at 95? And be at different positions
outside?
Could there be a voltage drop in the long cable length that is more
pronounced
at the higher speeds? Thus causing the controller to stop?
Anyone else see this condition?
Thanks
Eric
K2CB
Sent on the Sprint® Now Network from my BlackBerry®
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